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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1992-2009 Edwin Groothuis <edwin@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/time.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WITH_ICONV
#include <iconv.h>
#include <errno.h>
#include <langinfo.h>
static iconv_t conv = (iconv_t)-1;
static char *currentEncoding = NULL;
#endif
#include "pathnames.h"
#include "calendar.h"
#ifdef WITH_ICONV
void
set_new_encoding(void)
{
const char *newenc;
newenc = nl_langinfo(CODESET);
fprintf(stderr, "NEWENC=%s\n", newenc); // DEBUG
if (currentEncoding == NULL) {
currentEncoding = strdup(newenc);
if (currentEncoding == NULL)
errx(1, "set_new_encoding: cannot allocate memory");
return;
}
if (strcmp(currentEncoding, newenc) == 0)
return;
free(currentEncoding);
currentEncoding = strdup(newenc);
if (currentEncoding == NULL)
errx(1, "set_new_encoding: cannot allocate memory");
if (conv != (iconv_t) -1) {
iconv_close(conv);
conv = (iconv_t) -1;
}
}
#endif
static char *
convert(char *input)
{
char *output;
#ifdef WITH_ICONV
size_t inleft, outleft, converted = 0;
char *outbuf, *tmp;
char *inbuf;
size_t outlen;
if (currentEncoding == NULL) {
output = strdup(input);
if (output == NULL)
errx(1, "convert: cannot allocate memory");
return (output);
}
if (conv == (iconv_t)-1) {
conv = iconv_open(outputEncoding, currentEncoding);
if (conv == (iconv_t)-1) {
if (errno == EINVAL)
errx(1, "Conversion is not supported");
else
err(1, "Initialization failure");
}
fprintf(stderr, "CONV=%p\n", conv); // DEBUG
}
inleft = strlen(input);
inbuf = input;
outlen = inleft + 3;
if ((output = malloc(outlen)) == NULL)
errx(1, "convert: cannot allocate memory");
for (;;) {
errno = 0;
outbuf = output + converted;
outleft = outlen - converted;
fprintf(stderr, "-< %s %p %ld %ld\n", inbuf, outbuf, inleft, outleft); // DEBUG
converted = iconv(conv, (char **) &inbuf, &inleft, &outbuf, &outleft);
fprintf(stderr, "-> %ld %s %p %ld %ld\n", converted, inbuf, outbuf, inleft, outleft); // DEBUG
if (converted != (size_t) -1 || errno == EINVAL) {
/* finished or invalid multibyte, so truncate and ignore */
break;
}
if (errno != E2BIG) {
free(output);
err(1, "convert");
}
converted = outbuf - output;
outlen += inleft * 2;
if ((tmp = realloc(output, outlen + 1)) == NULL) {
free(output);
errx(1, "convert: cannot allocate memory");
}
output = tmp;
outbuf = output + converted;
}
/* flush the iconv conversion */
iconv(conv, NULL, NULL, &outbuf, &outleft);
/* null terminate the string */
*outbuf = '\0';
#else
output = strdup(input);
if (output == NULL)
errx(1, "convert: cannot allocate memory");
#endif
return (output);
}
struct event *
event_add(int year, int month, int day, char *date, int var, char *txt,
char *extra)
{
struct event *e;
/*
* Creating a new event:
* - Create a new event
* - Copy the machine readable day and month
* - Copy the human readable and language specific date
* - Copy the text of the event
*/
e = (struct event *)calloc(1, sizeof(struct event));
if (e == NULL)
errx(1, "event_add: cannot allocate memory");
e->month = month;
e->day = day;
e->var = var;
e->date = convert(date);
if (e->date == NULL)
errx(1, "event_add: cannot allocate memory");
e->text = convert(txt);
if (e->text == NULL)
errx(1, "event_add: cannot allocate memory");
e->extra = NULL;
if (extra != NULL && extra[0] != '\0')
e->extra = convert(extra);
addtodate(e, year, month, day);
return (e);
}
void
event_continue(struct event *e, char *txt)
{
char *oldtext, *text;
text = convert(txt);
oldtext = e->text;
if (oldtext == NULL)
errx(1, "event_continue: cannot allocate memory");
asprintf(&e->text, "%s\n%s", oldtext, text);
if (e->text == NULL)
errx(1, "event_continue: cannot allocate memory");
free(oldtext);
free(text);
return;
}
void
event_print_all(FILE *fp)
{
struct event *e;
while (walkthrough_dates(&e) != 0) {
#ifdef DEBUG
if (e)
fprintf(stderr, "event_print_all month: %d, day: %d\n",
e->month, e->day);
#endif
/*
* Go through all events and print the text of the matching
* dates
*/
while (e != NULL) {
(void)fprintf(fp, "%s%c%s%s%s%s\n", e->date,
e->var ? '*' : ' ', e->text,
e->extra != NULL ? " (" : "",
e->extra != NULL ? e->extra : "",
e->extra != NULL ? ")" : ""
);
e = e->next;
}
}
}
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